Unbelievable **** service

I received an invoice saying I owe Telkom R 3,320.28 which is completely incorrect. There was a missed payment for November 2017 which was due in December. The outstanding amount for November of R1,917.95 was deducted on the 20 December 2017. The installment for December for the amount of R1,749.94 was deducted on the 22 December 2017. I have since called the call center and used the chat service to try and resolve this issue which is just not helping. I spoke to Nonkululeko Mzimela on the call center number who i sent all the documentation and proof of payment to and she said she will "update" the system. This was never done according to the second agent I spoke to, I then went on your chat service and spoke to Nlisiwe Mkhizi who then told me again the system still shows an outstanding amount as no-one escalated. She again then "updated" the system and someone was going to call me back which never happened. I went on the chat service again and was told there is still an amount outstanding and was requested to send the documentations to ********** or something. I'm tired of this issue and all i want is to avoid getting double debited for money i don't owe you which you will do because that's just how your company operates.

Please resolve this as soon as possible as I don’t want my account to be deducted with money I don’t owe you.